Ensure there is valid context for DrawRectangle

[wxWidgets.git] / src / unix / stdpaths.cpp

diff --git a/src/unix/stdpaths.cpp b/src/unix/stdpaths.cpp
index 1c4bacc25e75342f785391091af39d93302732d3..58f8c2c6706d33ea5eff1bad7654a27392f4e5ef 100644 (file)
--- a/src/unix/stdpaths.cpp
+++ b/src/unix/stdpaths.cpp
@@ -1,12 +1,12 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        unix/stdpaths.cpp
+// Name:        src/unix/stdpaths.cpp
 // Purpose:     wxStandardPaths implementation for Unix & OpenVMS systems
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     2004-10-19
 // RCS-ID:      $Id$
 // Copyright:   (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
-// License:     wxWindows license
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -29,6 +29,7 @@
 #include "wx/stdpaths.h"
 
 #ifndef WX_PRECOMP
+    #include "wx/app.h"
     #include "wx/wxcrt.h"
     #include "wx/utils.h"
 #endif //WX_PRECOMP
@@ -66,7 +67,7 @@ wxString wxStandardPaths::GetInstallPrefix() const
 {
     if ( m_prefix.empty() )
     {
-        wx_const_cast(wxStandardPaths *, this)->m_prefix = wxT("/sys$system");
+        const_cast<wxStandardPaths *>(this)->m_prefix = wxT("/sys$system");
     }
 
     return m_prefix;
@@ -74,17 +75,17 @@ wxString wxStandardPaths::GetInstallPrefix() const
 
 wxString wxStandardPaths::GetConfigDir() const
 {
-   return _T("/sys$manager");
+   return wxT("/sys$manager");
 }
 
 wxString wxStandardPaths::GetDataDir() const
 {
-   return AppendAppInfo(GetInstallPrefix() + _T("/sys$share"));
+   return AppendAppInfo(GetInstallPrefix() + wxT("/sys$share"));
 }
 
 wxString wxStandardPaths::GetLocalDataDir() const
 {
-   return AppendAppInfo(_T("/sys$manager"));
+   return AppendAppInfo(wxT("/sys$manager"));
 }
 
 wxString wxStandardPaths::GetUserDataDir() const
@@ -121,7 +122,7 @@ wxString wxStandardPaths::GetExecutablePath() const
     wxString exeStr;
 
     char buf[4096];
-    int result = readlink("/proc/self/exe", buf, WXSIZEOF(buf) - sizeof(char));
+    int result = readlink("/proc/self/exe", buf, WXSIZEOF(buf) - 1);
     if ( result != -1 )
     {
         buf[result] = '\0'; // readlink() doesn't NUL-terminate the buffer
@@ -173,7 +174,7 @@ wxString wxStandardPaths::GetInstallPrefix() const
 {
     if ( m_prefix.empty() )
     {
-        wxStandardPaths *pathPtr = wx_const_cast(wxStandardPaths *, this);
+        wxStandardPaths *pathPtr = const_cast<wxStandardPaths *>(this);
         pathPtr->DetectPrefix();
     }
 
@@ -186,27 +187,41 @@ wxString wxStandardPaths::GetInstallPrefix() const
 
 wxString wxStandardPaths::GetConfigDir() const
 {
-   return _T("/etc");
+   return wxT("/etc");
 }
 
 wxString wxStandardPaths::GetDataDir() const
 {
-   return AppendAppInfo(GetInstallPrefix() + _T("/share"));
+    // allow to override the location of the data directory by setting
+    // WX_APPNAME_DATA_DIR environment variable: this is very useful in
+    // practice for running well-written (and so using wxStandardPaths to find
+    // their files) wx applications without installing them
+    static const wxString
+      envOverride(
+        getenv(
+            ("WX_" + wxTheApp->GetAppName().Upper() + "_DATA_DIR").c_str()
+        )
+      );
+
+    if ( !envOverride.empty() )
+        return envOverride;
+
+   return AppendAppInfo(GetInstallPrefix() + wxT("/share"));
 }
 
 wxString wxStandardPaths::GetLocalDataDir() const
 {
-   return AppendAppInfo(_T("/etc"));
+   return AppendAppInfo(wxT("/etc"));
 }
 
 wxString wxStandardPaths::GetUserDataDir() const
 {
-   return AppendAppInfo(wxFileName::GetHomeDir() + _T("/."));
+   return AppendAppInfo(wxFileName::GetHomeDir() + wxT("/."));
 }
 
 wxString wxStandardPaths::GetPluginsDir() const
 {
-    return AppendAppInfo(GetInstallPrefix() + _T("/lib"));
+    return AppendAppInfo(GetInstallPrefix() + wxT("/lib"));
 }
 
 wxString
@@ -216,7 +231,7 @@ wxStandardPaths::GetLocalizedResourcesDir(const wxString& lang,
     if ( category != ResourceCat_Messages )
         return wxStandardPathsBase::GetLocalizedResourcesDir(lang, category);
 
-    return GetInstallPrefix() + _T("/share/locale/") + lang + _T("/LC_MESSAGES");
+    return GetInstallPrefix() + wxT("/share/locale/") + lang + wxT("/LC_MESSAGES");
 }
 
 wxString wxStandardPaths::GetDocumentsDir() const